3G G. Nevill— Xi5i5 of tie Mollusca of [No. 1, 



have, liowcver, all lost their first three or four whorls ; both young and old 

 shells are perfectly smooth, with the exception of a deeply incised spiral 

 groove below the suture ; the figure in the Con. Indica, pi. 108, fig. 8, is 

 excellent ; perhaps it scarcely shows sufficiently clearly the three broad spiral 

 brown bands ; from the peculiar thickness, even of young shells, these 

 bands are, however, often scarcely visible ; the operculum resembles that of 

 P. regulata, Bens., only it is little flatter, both differ considerably from 

 that of P. Andersoniana, being much smoother on their inner side. 

 Long. 24, diam. 16 mil. 



Paludomus begulata, Bens. 

 FaUidomus regiilata, Bens., A. & M., 1856, p. 496 ; Con. Indica, pi. 108, fig. 5. 



This species was not obtained by Dr. Anderson ; the Museum, however, 

 possesses some hundred specimens from Prome and Thyet-Myo in Pegu ; the 

 specimens from the latter locality are typical ones from the collection of Mr. 

 Theobald ; the shell is admirably figured as above in the ' Con. Indica' ; the 

 spiral, broad, flattened ridges throughout are very characteristic, as is also its 

 slightly compressed, angular shape ; the operculum differs from that of P. 

 Andersoniana, by being more concave and less broad on its inner side, the 

 nucleolar part is less raised and much more rugose, the broad polished margin 

 (under the lens) is destitute of sculpture, instead of being minutely granular. 



Long. max. 24^, diam. 16 mil. 



PALTJDOMrs Btjrmanica, u. sp. 



Shell small, very thick, spire depressed, in shape closely resembling the 

 European Litorina ohtusata ; only two whorls, the others decollated in 

 both young and old specimens ; smooth, with a few irregular strise at suture ; 

 columella very thick, pure white ; aperture somewhat compressed, as in 

 typical P. lahiosa, not globosely exj)anded as in P. Slanfordiana ; in all the 

 ten specimens found, only three instead of four bands, the upper one exceed- 

 ingly broad, covering nearly half the last whorl, the middle one narrow, 

 the basal one broad, but not diffused over any part of the columella, these 

 bands are of the most intense black within the aperture, even in very old, 

 thick specimens ; epidermis unusually thick, dark olive-green, closely cover- 

 ed with regular raised pustules of a lighter colour. 



Yaylaymaw and also Mandalay. 



Long. 14 1, diam, 12 mil. 



The operculum is like that of P. regulaia, a shade darker in colour, 

 nucleolar portion on the inner side a little more distinctly spirally rugose. 

 The broad and richly coloured bands (only three in number), pure white colu- 

 mella, and peculiar epidermis are the principal distinguishing characters 

 from typical Tenasserim P. Z«i/os«; it is, I consider, quite distinct from 

 P. Blanfordiana. 



